A multi-stage sewage sedimentation and purification device

Abstract

The utility model relates to sewage treatment device technical field especially relates to a multistage sewage sedimentation purification device. Including shell, shell is provided with stirring cavity, sedimentation chamber and storage cavity, stirring cavity is provided with stirring subassembly, sedimentation chamber is provided with first sedimentation subassembly, sedimentate chamber and set up second sedimentation subassembly, storage cavity is provided with storage subassembly, stirring subassembly includes: support seat, support seat rotatoryly connected with central rod, central rod rotatoryly connected with stirring fan blade, central rod is provided with planetary gear set, planetary gear set is fixed with the blanking bar, shell is provided with first water pump. The utility model discloses through stirring fan blade rotation to sewage is stirred, cooperation spring and pressure sensor, can according to sewage resistance dynamic adjustment stirring intensity, ensure that sewage and flocculating agent mix evenly, improve flocculation effect, lay good foundation for subsequent sedimentation, through blanking bar and add to the sewage with flocculating agent ration dispersion, shorten flocculating agent dissolving diffusion time, promote flocculation formation, improve flocculation effect.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment devices, and in particular to a multi-stage sewage sedimentation and purification device. Background Technology

[0002] In industrial production and daily life, the amount of wastewater discharged continues to increase. If the pollutants such as suspended particles and organic matter contained in the wastewater are discharged directly, it will seriously damage the aquatic ecological environment, threaten the survival of animals and plants and human health. Therefore, wastewater purification and treatment has become a critical issue that urgently needs to be addressed.

[0003] Existing wastewater sedimentation and purification devices mostly adopt a single sedimentation structure, which has problems such as uneven mixing of wastewater and flocculant and insufficient reaction, resulting in poor flocculation effect of pollutants. At the same time, uneven water distribution during sedimentation can easily lead to turbulent water flow, affecting sedimentation efficiency. Furthermore, the lack of flexible sedimentation components makes it difficult to adapt to the treatment needs of different water qualities and cannot guarantee the stability of effluent water quality. Utility Model Content

[0004] In order to overcome the shortcomings of uneven mixing of sewage and flocculant, uneven water distribution during sedimentation, and lack of flexible adjustment of sedimentation components, the technical problem of this utility model is to provide a multi-stage sewage sedimentation and purification device.

[0005] The technical implementation scheme of this utility model is as follows: a multi-stage sewage sedimentation and purification device, including a shell, a stirring chamber, a sedimentation chamber and a storage chamber are provided inside the shell. The stirring chamber is provided with a stirring component for feeding and flocculating sewage. The sedimentation chamber is provided with a first sedimentation component for sedimentation treatment of sewage. The sedimentation chamber is provided with a second sedimentation component for second sedimentation treatment of sewage. The storage chamber is provided with a storage component for storing the treated clean water. The stirring assembly includes: a support base fixedly connected to the stirring chamber; a central rod rotatably connected to the support base; a stirring motor fixedly connected to the support base; the output end of the stirring motor fixedly connected to the central rod; a stirring blade rotatably connected to the end of the central rod away from the stirring motor; an elastic element provided between the stirring blade and the central rod; a pressure sensor provided at the elastic element between the stirring blade and the central rod; a planetary gear set provided on the central rod; a transmission gear provided on the central rod; the transmission gear of the central rod engaging with the planetary gear set; a feed rod symmetrically and uniformly distributed on the planetary gear set; and a first water pump provided inside the outer casing, which communicates with the stirring chamber and the sedimentation chamber.

[0006] In a preferred embodiment of the present invention, the side of the stirring chamber away from the support base is configured as a frustum-shaped bottom surface with a diameter that gradually decreases from top to bottom, and a grid filter element is fixedly connected to the bottom surface of the stirring chamber.

[0007] In a preferred embodiment of the present invention, the first sedimentation component includes: an upper water distribution plate, the upper water distribution plate being fixedly connected to the outer shell, a lower water distribution plate being fixedly connected to the outer shell, the lower water distribution plate being fixedly connected to the upper water distribution plate, and a uniformly distributed inclined tube being provided in the sedimentation chamber of the outer shell, with a buffer cylinder provided on the side of the inclined tube away from the upper water distribution plate.

[0008] In a preferred embodiment of this utility model, the water distribution holes of the upper water distribution plate are vertical, the water distribution holes of the lower water distribution plate are inclined parallel to the inclined tube, the water distribution holes of the lower water distribution plate are aligned with the evenly distributed inclined tube, and the water distribution holes of the upper water distribution plate are staggered with the water distribution holes of the lower water distribution plate.

[0009] In a preferred embodiment of the present invention, a sedimentation tank is fixedly connected inside the sedimentation chamber, and a uniformly distributed collection groove is provided on the sedimentation tank. The collection groove of the sedimentation tank is a frustum with a diameter that gradually decreases from top to bottom. A mudguard is fixedly connected to each collection groove of the sedimentation tank, and a weir plate is fixedly connected to the sedimentation tank. A serrated baffle is fixedly connected to the side of the weir plate away from the sedimentation tank.

[0010] In a preferred embodiment of this utility model, the second sedimentation component includes: a horizontal water distribution plate fixedly connected to the outer shell, a turbidity sensor disposed on the horizontal water distribution plate, uniformly distributed telescopic inclined plates rotatably connected inside the sedimentation chamber, an adjusting rod slidably connected to the sedimentation chamber, the adjusting rod being rotatably connected to the uniformly distributed telescopic inclined plates, a rack disposed on the adjusting rod, and an electric gear disposed on the outer shell, the electric gear meshing with the rack on the adjusting rod.

[0011] In a preferred embodiment of this utility model, a filter shell is fixedly connected inside the sedimentation chamber, a filter motor is provided on one side of the filter shell, a filter screen is rotatably connected inside the filter shell, the filter screen is fixedly connected to the output end of the filter motor, a second water pump is provided on the other side of the filter shell, the second water pump is connected to the sedimentation chamber and the storage chamber, a rinsing nozzle is provided inside the filter shell, and a collection box is slidably connected inside the filter shell.

[0012] In a preferred embodiment of the present invention, the storage component includes: a clear water tank, the clear water tank being fixedly connected to the storage cavity, a water quality detector being installed inside the clear water tank, a reuse pump being installed on one side of the clear water tank and communicating with the clear water tank, and a return pipe being installed on one side of the clear water tank.

[0013] Compared with the prior art, the present invention has the following advantages: The present invention stirs the sewage by rotating the stirring fan blades. With the help of spring and pressure sensor, the stirring force can be dynamically adjusted according to the sewage resistance to ensure that the sewage and flocculant are mixed evenly, improve the flocculation effect, and lay a good foundation for subsequent sedimentation. The flocculant is quantitatively dispersed into the sewage by the feeding rod, which shortens the flocculant dissolution and diffusion time, promotes floc formation, and improves the flocculation effect. The staggered distribution of water distribution holes in the upper and lower water distribution plates achieves uniform water distribution of sewage, avoids local water flow turbulence, and greatly improves the sedimentation efficiency of the inclined tube. Sediment is collected through sedimentation tank and mud baffle, and then the supernatant is smoothly overflowed through the cooperation of weir plate and sawtooth baffle, which reduces sediment entrainment and improves the water quality after sedimentation. By monitoring the turbidity of wastewater in real time using a turbidity sensor, the angle of the telescopic inclined plate can be easily adjusted, and the sedimentation angle can be optimized according to the turbidity of the wastewater to further improve the sedimentation effect. The water quality is monitored in real time by a water quality detector in the clear water tank to ensure that the water is reused or discharged after meeting the standards. The return pipe returns the water that does not meet the standards to the front end for reprocessing, thus ensuring the stability of the effluent water quality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention.

[0016] Figure 3 This is a three-dimensional cross-sectional view of the stirring fan blade of this utility model.

[0017] Figure 4 This is a three-dimensional cross-sectional view of the planetary gear set of this utility model.

[0018] Figure 5 This is a three-dimensional cross-sectional view of the first precipitation component of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the sedimentation tank and weir plate of this utility model.

[0020] Figure 7 This is a three-dimensional structural diagram of the second precipitation component of this utility model.

[0021] Figure 8 This is a three-dimensional cross-sectional view of the filter shell of this utility model.

[0022] Figure 9 This is a three-dimensional cross-sectional view of the clear water tank of this utility model.

[0023] The components in the attached diagram are labeled as follows: 1. Outer shell; 2. Stirring chamber; 3. Sedimentation chamber; 4. Storage chamber; 5. Stirring assembly; 501. Support base; 502. Central rod; 503. Stirring motor; 504. Stirring blade; 505. Planetary gear set; 506. Feeding rod; 507. First water pump; 508. Grille filter element; 6. First sedimentation assembly; 601. Upper water distribution plate; 602. Lower water distribution plate; 603. Inclined tube; 604. Buffer cylinder; 605. Sedimentation tank. 606. Mudguard, 607. Weir plate, 608. Serrated baffle, 7. Second sedimentation assembly, 701. Horizontal water distribution plate, 702. Turbidity sensor, 703. Telescopic inclined plate, 704. Adjusting rod, 705. Electric gear, 706. Filter housing, 707. Filter motor, 708. Filter screen, 709. Second water pump, 710. Flushing nozzle, 711. Collection box, 8. Storage assembly, 801. Clear water tank, 802. Water quality detector, 803. Reuse pump. Detailed Implementation

[0024] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way. Example

[0025] A multi-stage wastewater sedimentation and purification device, such as Figure 1 and Figure 2 As shown, the device includes an outer shell 1. Inside the outer shell 1, from left to right, there are a stirring chamber 2, a sedimentation chamber 3, and a storage chamber 4. The stirring chamber 2 is equipped with a stirring component 5 for feeding and flocculating wastewater. The sedimentation chamber 3 is equipped with a first sedimentation component 6 for sedimentation treatment of wastewater. The sedimentation chamber 3 is equipped with a second sedimentation component 7 for second sedimentation treatment of wastewater. The storage chamber 4 is equipped with a storage component 8 for storing the treated clean water. like Figures 2-4As shown, the stirring assembly 5 includes: a support base 501 fixed to the stirring chamber 2; a central rod 502 rotatably connected to the support base 501; a stirring motor 503 fixedly connected to the support base 501; the output end of the stirring motor 503 fixedly connected to the central rod 502; a stirring blade 504 rotatably connected to the lower end of the central rod 502; an elastic element, which is a spring, is provided between the stirring blade 504 and the central rod 502; a pressure sensor is provided at the elastic element between the stirring blade 504 and the central rod 502; a planetary gear set 505 is provided on the central rod 502; a transmission gear is provided on the central rod 502; and the transmission gear of the central rod 502 is connected to the planetary gear set 505. The planetary gear set 505 is connected to a planetary gear set 505 with a uniformly distributed feed rod 506 that is symmetrically distributed. The outer shell 1 is equipped with a first water pump 507, which is connected to the stirring chamber 2 and the sedimentation chamber 3. The lower side of the stirring chamber 2 is set as a frustum-shaped bottom surface with a diameter that gradually decreases from top to bottom. A grid filter element 508 is fixed to the bottom surface of the stirring chamber 2. The sewage is stirred by the stirring blades 504, and flocculant is added quantitatively by the feed rods 506. The flocculant is added to the sewage precisely and evenly to promote the formation of flocs. The stirring intensity of the stirring blades 504 is adjusted by the feedback of the sewage flocculation status through the pressure sensor to improve the floc settling efficiency.

[0026] like Figure 5 As shown, the first sedimentation component 6 includes: an upper water distribution plate 601 fixed to the outer shell 1; a lower water distribution plate 602 fixed to the outer shell 1; the lower water distribution plate 602 being fixed to the upper water distribution plate 601; uniformly distributed inclined tubes 603 arranged inside the sedimentation chamber 3 of the outer shell 1; a buffer cylinder 604 arranged on the lower side of the inclined tubes 603; the water distribution holes of the upper water distribution plate 601 are vertical; the water distribution holes of the lower water distribution plate 602 are inclined parallel to the inclined tubes 603; and the lower water distribution plate 602... The water distribution holes are aligned with the evenly distributed inclined tubes 603. The water distribution holes of the upper water distribution plate 601 and the water distribution holes of the lower water distribution plate 602 are staggered. The lower sewage flows downward in a direction parallel to the inclined tubes 603 through the water distribution holes of the lower water distribution plate 602, avoiding impact on the inclined tubes 603 and disturbing the water body. The upper sewage flows vertically downward to the intersection of the adjacent inclined tubes 603 through the water distribution holes of the upper water distribution plate 601, thereby eliminating the direct impact of sewage on the inclined tubes 603.

[0027] like Figure 5 and Figure 6As shown, a sedimentation tank 605 is fixedly connected inside the sedimentation chamber 3. The sedimentation tank 605 is provided with evenly distributed collection grooves. The collection grooves of the sedimentation tank 605 are frustums with a diameter that gradually decreases from top to bottom. Mud baffles 606 are fixedly connected to the collection grooves of the sedimentation tank 605. A weir plate 607 is fixedly connected to the sedimentation tank 605. A serrated baffle 608 is fixedly connected to the upper side of the weir plate 607. The flocs settled in the inclined tube 603 are collected through the collection grooves on the sedimentation tank 605. Then, the serrated baffle 608 further intercepts the fine flocs that have not settled, thus completing the deep sedimentation.

[0028] like Figure 7 As shown, the second sedimentation component 7 includes: a horizontal water distribution plate 701 fixed to the outer shell 1, a turbidity sensor 702 installed on the horizontal water distribution plate 701, a uniformly distributed telescopic inclined plate 703 rotatably connected inside the sedimentation chamber 3, an adjusting rod 704 slidably connected to the sedimentation chamber 3, the adjusting rod 704 and the uniformly distributed telescopic inclined plate 703 being rotatably connected, a rack installed on the adjusting rod 704, and an electric gear 705 installed on the outer shell 1, the electric gear 705 meshing with the rack on the adjusting rod 704. The turbidity of the wastewater is detected in real time by the turbidity sensor 702, providing sedimentation parameters, thereby flexibly adjusting the angle of the telescopic inclined plate 703 to adapt to the current wastewater turbidity and improve the sedimentation efficiency of fine flocs.

[0029] like Figure 7 and Figure 8 As shown, a filter shell 706 is fixedly connected inside the sedimentation chamber 3. A filter motor 707 is installed on the front side of the filter shell 706. A filter screen 708 is rotatably connected inside the filter shell 706. The filter screen 708 is fixedly connected to the output end of the filter motor 707. A second water pump 709 is installed on the rear side of the filter shell 706. The second water pump 709 is connected to the sedimentation chamber 3 and the storage chamber. A flushing nozzle 710 is installed inside the filter shell 706. A collection box 711 is slidably connected inside the filter shell 706. Wastewater is further filtered through the filter screen 708. Then, when the filter screen 708 is rotated into the filter shell 706, it is flushed in reverse by the flushing nozzle 710 to avoid clogging of the filter screen 708.

[0030] The storage component 8 includes: a clear water tank 801, which is fixed to the storage cavity 4. A water quality detector 802 is installed inside the clear water tank 801. A reuse pump 803 is installed on the right side of the clear water tank 801 and is connected to the clear water tank 801. A return pipe is installed on the left side of the clear water tank 801. The water quality detector 802 detects the quality of the effluent in real time, which facilitates the subsequent reuse or recirculation of the clear water for reprocessing and ensures the reliability of the effluent quality.

[0031] When using this device for sedimentation and purification of wastewater, the wastewater first enters the mixing chamber 2. Under the action of the frustum-shaped bottom surface on the lower side of the mixing chamber 2, the wastewater is guided towards the center. The mixing motor 503 starts, and its output drives the central rod 502 to rotate. The central rod 502, through a spring, drives the mixing blades 504 to rotate, thus agitating the wastewater. The reaction force of the wastewater compresses the springs of the mixing blades 504, storing energy. A pressure sensor monitors the spring force in real time, providing feedback on the flocculation state of the wastewater. The mixing blades 504 are adjusted according to the flocculation state of the wastewater. The rotation speed of 4 precisely controls the stirring intensity and improves the floc settling efficiency. When the central rod 502 rotates, the transmission gear on it meshes with the planetary gear set 505, driving the axisymmetrically and evenly distributed feeding rod 506 to move synchronously, and the rotation direction is opposite to that of the stirring fan blade 504. At the same time, the feeding rod accurately and evenly adds flocculant to the sewage, promoting the formation of flocs from suspended particles in the sewage. The flocculated sewage flows through the screen filter element 508 to intercept large-volume impurities. Meanwhile, the screen filter element 508 provides feedback on the clogging status based on changes in filtration resistance, ensuring continuous pretreatment.

[0032] After pretreatment, the first water pump 507 is started, which transports the sewage in the stirring chamber 2 to the first sedimentation component 6 area of ​​the sedimentation chamber 3. At the same time, the sewage is evenly distributed through the water distribution holes of the upper water distribution plate 601 and the lower water distribution plate 602. The water distribution holes of the upper water distribution plate 601 distribute the sewage evenly to the junction of the evenly distributed inclined tubes 603, reducing the direct impact of sewage on the inclined tubes 603 and causing water flow turbulence. The water distribution holes of the lower water distribution plate 602 distribute the sewage evenly in parallel with the inclined tubes 603 into the inclined tubes 603, avoiding direct impact of water flow on the inclined tubes 603.

[0033] As wastewater flows within the inclined tube 603, the flocs settle to the inner wall of the tube under gravity and then slide into the sedimentation tank 605. The collection groove on the sedimentation tank 605 collects the flocs, while the baffle plate 606 prevents sludge backflow. The buffer cylinder 604 buffers and stabilizes the wastewater flowing through the inclined tube 603, preventing the water flow from impacting the settled sludge and improving the stability of the filtration process. The wastewater continues to flow to the weir plate 607, which works in conjunction with the serrated baffle plate 608 to further intercept the unsettled fine flocs, thus completing the deep sedimentation.

[0034] After primary sedimentation, the wastewater enters the second sedimentation component 7 area. The horizontal water distribution plate 701 distributes the wastewater evenly again. The turbidity sensor 702 on the plate detects the turbidity of the wastewater in real time, providing data for sedimentation parameters. At this time, the electric gear 705 inside the outer casing 1 is activated. The electric gear 705 meshes with the rack on the adjusting rod 704, causing the adjusting rod 704 to slide in the sedimentation chamber 3. The adjusting rod 704 drives the evenly distributed telescopic inclined plate 703 to rotate, flexibly adjusting the tilt angle to adapt to the sedimentation requirements corresponding to the current turbidity of the wastewater, improving the sedimentation efficiency of fine flocs. After sedimentation by the telescopic inclined plate 703, the remaining tiny suspended particles in the wastewater are further separated, achieving secondary deep purification.

[0035] After secondary sedimentation, the wastewater enters the filter shell 706 in the sedimentation chamber 3. The filter motor 707 is started, and the output end of the filter motor 707 drives the filter screen 708 to rotate. The filter screen 708 traps the tiny impurities remaining in the wastewater. During the filtration process, the flushing nozzle 710 is started periodically to backwash the filter screen 708 to prevent the filter screen from clogging. The impurities and sludge generated during flushing fall into the collection box 711 for easy subsequent centralized cleaning. After filtration is completed, the second water pump 709 is started to transport the qualified water to the storage chamber 4.

[0036] The filtered clean water enters the clean water tank 801 in the storage chamber 4. The water quality detector 802 in the clean water tank 801 monitors the water quality in real time. If the water quality meets the standards, the reuse pump 803 starts to reuse or discharge the clean water. If the water quality does not meet the standards, the water is returned to the stirring chamber 2 or the sedimentation chamber 3 through the return pipe for re-purification to ensure reliable water quality. This completes the sedimentation and purification treatment of the wastewater.

[0037] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of this invention. Therefore, the scope of this invention should be limited only by the appended claims.

Claims

1. A multi-stage wastewater sedimentation and purification device, characterized in that, The device includes an outer shell (1), which contains a stirring chamber (2), a sedimentation chamber (3), and a storage chamber (4). The stirring chamber (2) contains a stirring assembly (5) for feeding and flocculating wastewater. The sedimentation chamber (3) contains a first sedimentation assembly (6) for sedimentation treatment of wastewater. The sedimentation chamber (3) contains a second sedimentation assembly (7) for second sedimentation treatment of wastewater. The storage chamber (4) contains a storage assembly (8) for storing treated clean water. The stirring assembly (5) includes: a support base (501), which is fixedly connected to the stirring chamber (2). A central rod (502) is rotatably connected to the support base (501). A stirring motor (503) is fixedly connected to the support base (501). The output end of the stirring motor (503) is fixedly connected to the central rod (502). A stirring blade (504) is rotatably connected to one end of the central rod (502) away from the stirring motor (503). An elastic element is provided between the stirring blade (504) and the central rod (502). A pressure sensor is provided at the elastic element between the stirring blade (504) and the central rod (502). A planetary gear set (505) is provided on the central rod (502). A transmission gear is provided on the central rod (502). The transmission gear of the central rod (502) is in transmission cooperation with the planetary gear set (505). A feed rod (506) with axisymmetric and uniform distribution is fixedly connected to the planetary gear set (505). A first water pump (507) is provided inside the outer shell (1). The first water pump (507) is connected to the stirring chamber (2) and the sedimentation chamber (3).

2. The multi-stage wastewater sedimentation and purification device according to claim 1, characterized in that, The stirring chamber (2) is configured with a frustum-shaped bottom surface with a diameter that gradually decreases from top to bottom on the side away from the support base (501), and a grid filter element (508) is fixedly connected to the bottom surface of the stirring chamber (2).

3. A multi-stage wastewater sedimentation and purification device according to claim 1, characterized in that, The first sedimentation component (6) includes: an upper water distribution plate (601), which is fixed to the outer shell (1), and a lower water distribution plate (602) which is fixed to the outer shell (1). The lower water distribution plate (602) is fixed to the upper water distribution plate (601). The sedimentation chamber (3) of the outer shell (1) is provided with uniformly distributed inclined tubes (603), and a buffer cylinder (604) is provided on the side of the inclined tubes (603) away from the upper water distribution plate (601).

4. A multi-stage wastewater sedimentation and purification device according to claim 3, characterized in that, The water distribution holes of the upper water distribution plate (601) are vertical, the water distribution holes of the lower water distribution plate (602) are parallel to the inclined tube (603) and inclined tube (603) are inclined, the water distribution holes of the lower water distribution plate (602) are aligned with the evenly distributed inclined tube (603), and the water distribution holes of the upper water distribution plate (601) and the water distribution holes of the lower water distribution plate (602) are staggered.

5. A multi-stage wastewater sedimentation and purification device according to claim 3, characterized in that, A sedimentation tank (605) is fixedly connected inside the sedimentation chamber (3). The sedimentation tank (605) is provided with uniformly distributed collection grooves. The collection grooves of the sedimentation tank (605) are frustums with diameters gradually decreasing from top to bottom. Mud baffles (606) are fixedly connected to the collection grooves of the sedimentation tank (605). A weir plate (607) is fixedly connected to the sedimentation tank (605). A serrated baffle plate (608) is fixedly connected to the side of the weir plate (607) away from the sedimentation tank (605).

6. A multi-stage wastewater sedimentation and purification device according to claim 5, characterized in that, The second sedimentation component (7) includes: a horizontal water distribution plate (701), which is fixed to the outer shell (1), a turbidity sensor (702) is provided on the horizontal water distribution plate (701), a uniformly distributed telescopic inclined plate (703) is rotatably connected in the sedimentation chamber (3), an adjusting rod (704) is slidably connected in the sedimentation chamber (3), the adjusting rod (704) is rotatably connected to the uniformly distributed telescopic inclined plate (703), a rack is provided on the adjusting rod (704), and an electric gear (705) is provided in the outer shell (1), the electric gear (705) meshes with the rack on the adjusting rod (704).

7. A multi-stage wastewater sedimentation and purification device according to claim 6, characterized in that, A filter shell (706) is fixedly connected inside the sedimentation chamber (3). A filter motor (707) is provided on one side of the filter shell (706). A filter screen (708) is rotatably connected inside the filter shell (706). The filter screen (708) is fixedly connected to the output end of the filter motor (707). A second water pump (709) is provided on the other side of the filter shell (706). The second water pump (709) is connected to the sedimentation chamber (3) and the storage chamber. A rinsing nozzle (710) is provided inside the filter shell (706). A collection box (711) is slidably connected inside the filter shell (706).

8. A multi-stage wastewater sedimentation and purification device according to claim 7, characterized in that, The storage component (8) includes: a clear water tank (801), which is fixed to the storage cavity (4), a water quality detector (802) is installed in the clear water tank (801), a reuse pump (803) is installed on one side of the clear water tank (801), the reuse pump (803) is connected to the clear water tank (801), and a return pipe is installed on one side of the clear water tank (801).

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